By measuring the current-voltage characteristics and the switching current distributions as a function of temperature, we have investigated the phase dynamics of Al tunnel ferromagnetic Josephson junctions (JJs), designed to fall in the typical range of parameters of state-of-the-art transmons, providing evidence of phase diffusion processes. The comparison with the experimental outcomes on non-magnetic JJs with nominally the same electrodynamical parameters demonstrates that the introduction of ferromagnetic barriers does not cause any sizeable detrimental effect and supports the notion of including tunnel ferromagnetic JJs in qubit architectures.

Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions / Ahmad, H. G.; Satariano, R.; Ferraiuolo, R.; Vettoliere, A.; Granata, C.; Montemurro, D.; Ausanio, G.; Parlato, L.; Pepe, G. P.; Tafuri, F.; Massarotti, D.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 124:23(2024). [10.1063/5.0211006]

Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions

Ahmad H. G.
;
Satariano R.;Ferraiuolo R.;Montemurro D.;Ausanio G.;Parlato L.;Pepe G. P.;Tafuri F.;Massarotti D.
2024

Abstract

By measuring the current-voltage characteristics and the switching current distributions as a function of temperature, we have investigated the phase dynamics of Al tunnel ferromagnetic Josephson junctions (JJs), designed to fall in the typical range of parameters of state-of-the-art transmons, providing evidence of phase diffusion processes. The comparison with the experimental outcomes on non-magnetic JJs with nominally the same electrodynamical parameters demonstrates that the introduction of ferromagnetic barriers does not cause any sizeable detrimental effect and supports the notion of including tunnel ferromagnetic JJs in qubit architectures.
2024
Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions / Ahmad, H. G.; Satariano, R.; Ferraiuolo, R.; Vettoliere, A.; Granata, C.; Montemurro, D.; Ausanio, G.; Parlato, L.; Pepe, G. P.; Tafuri, F.; Massarotti, D.. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 124:23(2024). [10.1063/5.0211006]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/962966
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